Home / 87,651.11-120,967.04-51,852.65

Finding the Fourth Proportional to 87,651.11, 120,967.04 and 51,852.65

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Solution

The fourth proportional to 87,651.11, 120,967.04 and 51,852.65 is: 71,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,651.11 : 120,967.04 = 51,852.65 : x
  2. Step 2: Convert to fraction form
    87,651.11/120,967.04 = 51,852.65/x
  3. Step 3: Cross multiply
    87,651.11x = 120,967.04 × 51,852.65
  4. Step 4: Simplify right side
    87,651.11x = 6,272,461,111.45
  5. Step 5: Solve for x
    x = 6,272,461,111.45/87,651.11
  6. Step 6: Final answer
    x = 71,561.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.